Slitted pressure cuff check valve
US5324267A · kind A · utility
4Cited by
8References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1992 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Sep 14, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7779
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A check valve for disposable pressure infusion systems having an inflation bulb with a single open end includes a valve body with a pair of intake ports and a discharge port. Disposed at such single open end of the inflation bulb, one of the intake ports permits a flow of pressurizing air from the inflation bulb when squeezed to a pressure cuff through flexible tubing coupled to the discharge port. A flexible diaphragm having slitted openings is disposed within the check valve which provides for opening and closure of a specific port alternatively during squeezes and release of the inflation bulb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.